331221230222011 has 4 divisors (see below), whose sum is σ = 331221279760000. Its totient is φ = 331221180684024.

The previous prime is 331221230222009. The next prime is 331221230222123. The reversal of 331221230222011 is 110222032122133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331221230222011 - 2¹ = 331221230222009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331221230222711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12817371 + ... + 28752868.

It is an arithmetic number, because the mean of its divisors is an integer number (82805319940000).

Almost surely, 2^{331221230222011} is an apocalyptic number.

331221230222011 is a deficient number, since it is larger than the sum of its proper divisors (49537989).

331221230222011 is an equidigital number, since it uses as much as digits as its factorization.

331221230222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49537988.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 331221230222011 its reverse (110222032122133), we get a palindrome (441443262344144).

The spelling of 331221230222011 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, two hundred thirty million, two hundred twenty-two thousand, eleven".